"Oh, maybe you misunderstood. A world without Haruka isn't worth saving."

Michiru was mature, calm, and quiet, and it was hard to tell just what she was thinking. She had a distinct sense of humor, though, and enjoyed teasing Haruka. According to the Materials Collection, she had a kindness "as great as the sea." She was an athletic swimmer, a gifted artist, and an accomplished violinist; she often performed in concerts, either by herself or jointly, such as when she held a concert with the Three Lights.

Otaku Trivia:

1) Michiru owns her own helicopter that she calls the Kaio Maru.

2) As with the other members of the Outer Senshi, her surname is also the name of a rail line in Tokyo.

3) Michiru is capable of using the Deep Aqua Mirror without needing to become Sailor Neptune.